./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 025d5a27 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-025d5a2 [2019-11-26 17:56:06,492 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:56:06,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:56:06,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:56:06,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:56:06,537 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:56:06,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:56:06,560 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:56:06,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:56:06,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:56:06,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:56:06,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:56:06,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:56:06,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:56:06,588 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:56:06,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:56:06,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:56:06,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:56:06,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:56:06,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:56:06,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:56:06,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:56:06,630 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:56:06,636 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:56:06,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:56:06,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:56:06,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:56:06,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:56:06,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:56:06,653 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:56:06,653 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:56:06,654 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:56:06,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:56:06,661 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:56:06,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:56:06,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:56:06,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:56:06,669 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:56:06,669 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:56:06,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:56:06,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:56:06,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2019-11-26 17:56:06,715 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:56:06,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:56:06,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:56:06,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:56:06,724 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:56:06,724 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:56:06,725 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:56:06,727 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 17:56:06,727 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 17:56:06,727 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:56:06,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:56:06,729 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 17:56:06,730 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 17:56:06,732 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 17:56:06,732 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:56:06,733 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 17:56:06,733 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:56:06,733 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:56:06,734 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:56:06,734 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:56:06,735 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:56:06,738 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:56:06,738 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:56:06,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:56:06,739 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:56:06,739 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-26 17:56:06,740 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 17:56:06,740 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 [2019-11-26 17:56:07,359 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:56:07,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:56:07,395 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:56:07,402 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:56:07,403 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:56:07,404 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-26 17:56:07,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f4d0c38/26c934ac462f46deb95fa67d8991bf92/FLAG56ed09419 [2019-11-26 17:56:08,627 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:56:08,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-26 17:56:08,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f4d0c38/26c934ac462f46deb95fa67d8991bf92/FLAG56ed09419 [2019-11-26 17:56:08,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8f4d0c38/26c934ac462f46deb95fa67d8991bf92 [2019-11-26 17:56:08,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:56:08,699 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-26 17:56:08,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:08,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:56:08,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:56:08,716 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:08" (1/1) ... [2019-11-26 17:56:08,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7d4b86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:08, skipping insertion in model container [2019-11-26 17:56:08,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:08" (1/1) ... [2019-11-26 17:56:08,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:56:08,790 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:56:09,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:56:09,282 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 17:56:09,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:56:09,474 INFO L208 MainTranslator]: Completed translation [2019-11-26 17:56:09,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09 WrapperNode [2019-11-26 17:56:09,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:09,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 17:56:09,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 17:56:09,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 17:56:09,497 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,497 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:09" (1/1) ... [2019-11-26 17:56:09,601 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 17:56:09,607 INFO L168 Benchmark]: Toolchain (without parser) took 904.75 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 991.2 MB in the end (delta: -29.5 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:56:09,611 INFO L168 Benchmark]: CDTParser took 3.10 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:56:09,620 INFO L168 Benchmark]: CACSL2BoogieTranslator took 776.46 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 996.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. [2019-11-26 17:56:09,622 INFO L168 Benchmark]: Boogie Preprocessor took 120.23 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 991.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-26 17:56:09,633 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.10 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 776.46 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 996.9 MB in the end (delta: -35.2 MB). Peak memory consumption was 20.7 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 120.23 ms. Allocated memory is still 1.0 GB. Free memory was 996.9 MB in the beginning and 991.2 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-025d5a2 [2019-11-26 17:56:13,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 17:56:13,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 17:56:13,465 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 17:56:13,466 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 17:56:13,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 17:56:13,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 17:56:13,495 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 17:56:13,499 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 17:56:13,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 17:56:13,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 17:56:13,513 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 17:56:13,513 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 17:56:13,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 17:56:13,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 17:56:13,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 17:56:13,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 17:56:13,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 17:56:13,537 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 17:56:13,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 17:56:13,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 17:56:13,561 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 17:56:13,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 17:56:13,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 17:56:13,575 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 17:56:13,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 17:56:13,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 17:56:13,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 17:56:13,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 17:56:13,586 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 17:56:13,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 17:56:13,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 17:56:13,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 17:56:13,592 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 17:56:13,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 17:56:13,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 17:56:13,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 17:56:13,601 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 17:56:13,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 17:56:13,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 17:56:13,607 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 17:56:13,608 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2019-11-26 17:56:13,645 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 17:56:13,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 17:56:13,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-26 17:56:13,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-26 17:56:13,654 INFO L138 SettingsManager]: * Use SBE=true [2019-11-26 17:56:13,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 17:56:13,655 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 17:56:13,655 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-26 17:56:13,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 17:56:13,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 17:56:13,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 17:56:13,659 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-11-26 17:56:13,659 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-11-26 17:56:13,660 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-11-26 17:56:13,660 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 17:56:13,663 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-26 17:56:13,663 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-26 17:56:13,663 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-26 17:56:13,664 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 17:56:13,664 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-26 17:56:13,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 17:56:13,666 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-26 17:56:13,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 17:56:13,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 17:56:13,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 17:56:13,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 17:56:13,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 17:56:13,671 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-26 17:56:13,672 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-26 17:56:13,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 17:56:13,673 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1dcdcb191cc3a70c9cb7bce226f0263f581cc07 [2019-11-26 17:56:14,320 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 17:56:14,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 17:56:14,356 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 17:56:14,360 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 17:56:14,361 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 17:56:14,364 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-26 17:56:14,513 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e260d9a1/279367f5ee5b46be8604d767e6714989/FLAG0cb916677 [2019-11-26 17:56:15,376 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 17:56:15,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2019-11-26 17:56:15,394 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e260d9a1/279367f5ee5b46be8604d767e6714989/FLAG0cb916677 [2019-11-26 17:56:15,438 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0e260d9a1/279367f5ee5b46be8604d767e6714989 [2019-11-26 17:56:15,448 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 17:56:15,452 INFO L131 ToolchainWalker]: Walking toolchain with 2 elements. [2019-11-26 17:56:15,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:15,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 17:56:15,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 17:56:15,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:15" (1/1) ... [2019-11-26 17:56:15,478 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496f2f38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:15, skipping insertion in model container [2019-11-26 17:56:15,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 05:56:15" (1/1) ... [2019-11-26 17:56:15,503 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 17:56:15,551 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-26 17:56:15,998 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:56:16,035 INFO L203 MainTranslator]: Completed pre-run [2019-11-26 17:56:16,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 17:56:16,215 INFO L208 MainTranslator]: Completed translation [2019-11-26 17:56:16,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16 WrapperNode [2019-11-26 17:56:16,220 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 17:56:16,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 17:56:16,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 17:56:16,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 17:56:16,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 05:56:16" (1/1) ... [2019-11-26 17:56:16,362 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 17:56:16,376 INFO L168 Benchmark]: Toolchain (without parser) took 917.67 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 966.0 MB in the beginning and 991.0 MB in the end (delta: -25.0 MB). There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:56:16,378 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-26 17:56:16,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.16 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 966.0 MB in the beginning and 996.7 MB in the end (delta: -30.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 12.5 GB. [2019-11-26 17:56:16,385 INFO L168 Benchmark]: Boogie Preprocessor took 145.48 ms. Allocated memory is still 1.0 GB. Free memory was 996.7 MB in the beginning and 991.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. [2019-11-26 17:56:16,394 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 763.16 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 966.0 MB in the beginning and 996.7 MB in the end (delta: -30.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 12.5 GB. * Boogie Preprocessor took 145.48 ms. Allocated memory is still 1.0 GB. Free memory was 996.7 MB in the beginning and 991.0 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 12.5 GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...